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首页> 外文期刊>IEEE journal of selected topics in quantum electronics >Saturation in neon- and nickel-like collisional soft-X-ray lasersat low pump energy
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Saturation in neon- and nickel-like collisional soft-X-ray lasersat low pump energy

机译：低泵浦能量下类似氖和镍的碰撞软X射线激光的饱和度

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We report on the experimental demonstration of saturated X-raynlaser output from collisionally pumped Ne-like Fe at 25.5 nm as well asnNi-like Ag and Pd at 14.0 nm and 14.7 nm, respectively, using a 100-psndrive pulse irradiation. A double-prepulse scheme and a 3-mnradius-of-curvature target resulted in a gain-length product of gL=16.5nin the case of Fe, With a single prepulse and flat slab targets,ngain-length products of 15.3 and 15.8 were obtained for Ag and Pd,nrespectively. Saturation was also confirmed by the observed reduction innbeam divergence with increasing target length. The required drive energynused was only 30 J in a 100-ps pulse, corresponding to an irradiance ofn12 TW/cm2. A key role in the achievement of these results wasnplayed by the reduction in the roughness of the target surface in thencase of the Pd X-ray laser
机译：我们报告了使用100 psn驱动脉冲辐照从25.5 nm的碰撞泵浦的Ne-like Fe以及14.0 nm和14.7 nm的nNi-like Ag和Pd的饱和X射线激光输出的实验演示。在Fe的情况下，双预脉冲方案和曲率3半径目标导致gL = 16.5n的增益长度乘积；对于单个预脉冲和平坦的平板目标，nga的长度乘积为15.3和15.8。分别获得了Ag和Pd。观察到的光束发散度随目标长度的增加而减少也证实了饱和。所需的驱动能量在100 ps的脉冲中仅为30 J，对应于n12 TW / cm2的辐照度。在实现Pd X射线激光的情况下，目标表面粗糙度的降低对实现这些结果起着关键作用

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